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Space-A flights from MCAS Iwakuni to Osan AB

By Luke Connally, USMC, Retired · Updated November 2026 · Built from 27 roll calls the terminal itself published

In the year ending November 2026, 27 Space-A flights went from MCAS Iwakuni to Osan AB. That is every week or two, and roughly 7 percent of MCAS Iwakuni's recorded departures. On the 9 flights where the terminal reported a category, Category VI got on 5 times. That is too few reports to turn into a percentage worth trusting.

Want today's picture instead of the record? The free live boards show what is posted from MCAS Iwakuni right now, and a free watch will email you when Osan AB comes up. No account needed to look.

How often this route flew

By raw volume, October and January saw the most departures on this route in the year ending November 2026, and September the fewest. The route was active in 12 of the 14 months on record.

Your odds as a retiree

MCAS Iwakuni reported a category on 9 flights to Osan AB. Category VI got on 5 of them. We will state a rate once there are fifteen reports to stand on.

The lowest category that made each reported flight, in the year ending November 2026:

Category II1 flight
Category III2 flights
Category IV1 flight
Category VI5 flights

How to sign up at MCAS Iwakuni

Sign-up at MCAS Iwakuni is free and does not commit you to anything. You can email the terminal at M_IWKN_SMBIwakuniSpa@usmc.mil (the email doubles as your dated proof of sign-up), use the AMC online sign-up portal and call 011-81-827-79-5509 to confirm anything time-sensitive. Do it 45 to 60 days before you want to travel, because your place in line at roll call is your sign-up date, and a sign-up is good for 60 days.

Questions people ask

How often are there Space-A flights from MCAS Iwakuni to Osan AB?

In the year ending November 2026, MCAS Iwakuni recorded 27 Space-A flights to Osan AB, which works out to every week or two. Firm schedules only appear about 72 hours ahead; the free live boards at spaceascout.com show what is posted now.

What are a retiree's odds on the MCAS Iwakuni to Osan AB route?

MCAS Iwakuni reported a category on 9 flights to Osan AB in the year ending November 2026, and Category VI got on 5 of them. That is too few to quote a rate honestly; the live boards show each result as it is published.

How do I sign up for a Space-A flight from MCAS Iwakuni?

Email M_IWKN_SMBIwakuniSpa@usmc.mil with your name, category, number of travelers and desired destinations, or use the AMC online portal. Sign up 45 to 60 days before you want to fly. It is free and the email gives you a dated record.

One caution worth passing on. These counts cover the roll calls that get published. Terminals miss days and some flights never make the public boards, so the true number is higher than any tracker can see. And the terminal always has the final word: call before you drive.

Related

Everything MCAS Iwakuni flies · Everything Osan AB flies

Open the live boards for MCAS Iwakuni

Space-A Scout collects 72-hour schedules, Patriot Express calendars and roll-call results from more than a hundred passenger terminals, refreshed every twenty minutes. It is free and no account is required. Built by Luke Connally, USMC, Retired, who flies Space-A himself. See every route we hold records for, every base, or start with the five-minute primer.